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Hi everyone. I just bought a 1989 190E with a 2.6 and a bad transmission (automatic) won't go into high gear. I have found used transmissions for the 2.3 engine. Are they the same and will they interchange> Would I use the torque converter that comes with the 2.3 or use the one off my 2.6? Flywheel?
Thanks for any advice.
Tom
 

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1984 190D 2.2
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It will work fine for yours, it's bolt on.

I'm not sure if you will have to change the torque ocnverter or flywheel though.
 

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SLR
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You'll probably have to use the 2.3 torque converter with the 2.3

When I put a 2.3 trans in my 16v, the 16v torque converter wouldn't work. It might be similar to the 2.6
 

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1992 190E 2.3 8v w/ '87 5-speed and 3.27 rear, 1966 Shelby Cobra 427 S/C, 2018 Triumph Bonneville
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I'm no expert in 2.6s and 16valves, but I have a done a auto->5speed conversion on my 2.3. The 16valves vs the 2.3/2.6 are different, but the 2.3 and 2.6 should be inter-changeable.

Trial and error?
 

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600 (3.200 mm)
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Hi everyone. I just bought a 1989 190E with a 2.6 and a bad transmission (automatic) won't go into high gear. I have found used transmissions for the 2.3 engine. Are they the same and will they interchange> Would I use the torque converter that comes with the 2.3 or use the one off my 2.6? Flywheel?
Thanks for any advice.
Tom
Used gearbox is for 190 E (2.3 US, 201.024) or 190 E 2.3 (201.028)?
 

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Discussion Starter #8
Used gearbox is for 190 E (2.3 US, 201.024) or 190 E 2.3 (201.028)?
Here is a picture of the used trans serial number. Does that help? I hate to get in the middle of a swap and find out that I need more parts. (like the flywheel) Any help is sure appreciated.
Thanks, Tom
 

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yes you can use the 2.3 trans in the 2.6, you will have to use the torque converter that goes with your new transmission. the torque converters are specific to the transmissions. the only thing you may notice is that the older 722.x trans start in second gear and the later ones start in first gear. based on the picture of your used trans, that's a 722.4 which means it out of a later model and should have a first gear start. do not change your flywheel. the 2.6 will not run with a 2.3 flywheel.
 

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Thank you so much. I will go ahead and order it then. I think I would prefer the first gear starts anyway. Sounds like there are plenty of "bugs" to work out in these cars, but it drives so NICE, and no RUST! The car came from Florida and rust is a given here in Wisconsin. I will be getting close to what they are worth, but I think I will really like the car.
Tom
 

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The 722.408 and .409 have identical torque convertors (270 mm).

But they have different quantity and thickness of the inner and outer discs of the clutch K1 and K2.

I think, that installing of the 722.409 or 722.410/413/416/417/418 (but with reinstall (from .409) the valve body and modulator) can be more correctly and competently decision of a problem.


Salutte! :)
 

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Thanks for all the advice so far. It's really helping me out. I bought the tranny this morning and it should be here in a few days. We will be doing this swap out in the yard. (lovely,huh?) Any tips for me? Does the exhaust need to come off?
Thanks, Tom
 

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'87 190E 2.3 Manual, '81 500SEL 4whl SLS, '91 300SEL
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Thanks for all the advice so far. It's really helping me out. I bought the tranny this morning and it should be here in a few days. We will be doing this swap out in the yard. (lovely,huh?) Any tips for me? Does the exhaust need to come off?
Thanks, Tom
Take the exhaust off and the drive-shaft. Also, get a bunch of swivel extensions if you plan on pulling the transmission off by itself, the top engine to transmission bolts are 17mm that are difficult to get to with it in the car. I believe you can also unbolt part of the second fire-wall for access.

As best as I can recall, you'll need to remove:
  • Exhaust system (I dropped the whole thing from the downpipe back)
  • Drive-shaft
  • Vacuum line going to pressure modulator
  • Transmission control pressure cable (comes from throttle linkage, undo at linkage - keep in mind this part can disconnect from inside the transmission when slackened, so make sure to keep it under tension when install new transmission)
  • Electrical connector for neutral safety
  • Shift linkage (replace bushings while you're at it, much easier with transmission off the car - especially for the linkage @ the transmission
  • Speedometer cable
  • Kick-down electrical connector
  • 2 x Transmission cooler lines (banjo bolts, get new crush washers at this time)
  • 6 x 13mm bolts holding flywheel to torque converter (behind triangular plastic/rubber access panel, crank engine by hand to access)
  • 1 x 19mm(?) holding transmission mount in place
  • ~12 x 17mm bolts holding transmission (and starter) to engine.
A good transmission jack will come in handy, too. If you cannot access all the bolts, you would do well to use an engine hoist and undo the engine mounts so the whole power-train can swing back and give you access.

While a 2.3 transmission does bolt up, I'd be wary of failure due to it being less robust than the 2.6 transmission. Be meticulous about your fluid level, and use a good quality transmission filter and gasket set on your new transmission - protect your investment.
 

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W201
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How did the swap go? I just bought a 1990 2.6 (w201) with a bad tranny (no reverse) and am planning to replace that 722.409 with a 722.411 (W124 200 gasser) which I got for a song from a friend. I am a bit confused as to what people are saying on this thread about the TC - the replacement tranny has no TC, so I was going to use the original 6-cylinder TC. Could somebody clarify why it wouldn´t work? Thanks.
 

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More importantly, the number of clutch disks and plates differ for the various transmissions. The 2.6 has an extra pair of plates in each clutch pack. Fewer plates would mean accelerated wear.
 
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